Reverse gear whine?

[mlhil]

I wonder if my 2012 si is unusual in that reverse gear whines quite loudly when backing up? Any thoughts? Thanks

 

[jasonandre]

It's very normal. Why it makes the sound is beyond my knowledge level.

 

[Monk]

I've always thought most cars have a high whine in reverse, and you've been driving almost as long as I have. Hard to say any more since I can't hear it.

 

[andre12dbsi]

I was just thinking about how loud the whine is when I backed up a second ago. It's normal as far as Civics go. I don't seem to remember other cars doing it though.

 

[mlhil]

I agree, it just seems louder, so I though I would check before whining at the dealer

 

[Scione]

So it's not only my Civic that has whining in reverse. I only drove Toyotas before. None of them have reverse whining.

 

[Monk]

Are you going fast in reverse ? Also it can vary due to cars soundproofing.

 

[andre12dbsi]

Are you going fast in reverse ? Also it can vary due to cars soundproofing.

Mine does it at any speed. The pitch just gets higher if I go faster.

 

[Dar-Dar]

It's normal with reverse. It sounds like an RC car.

 

[squiggy]

It's normal with reverse. It sounds like an RC car.

I have never thought of describing it that way, but you couldn't be more dead on as far as a reference to what it sounds like.

 

[CivicCanuck]

It's the way the teeth are cut in the gears for reverse that causes the noise... every manual Honda I have driven makes noises in reverse, the faster you go, the louder it is.

 

[KennyGS]

I believe the reverse gears are straight cut versus a helical cut typically used on the forward gears. Straight cut gears are simpler/cheaper to produce, but louder. Not a problem since reverse is used less frequently, and at low speed.

 

[the insider]

It's the way the teeth are cut in the gears for reverse that causes the noise... every manual Honda I have driven makes noises in reverse, the faster you go, the louder it is.

Yes, the reverse gears are straight cut and the forward gears are helical cut to keep gear whine to a minimum.

 

[xXBob RossXx]

we have dog box transmissions thats why

 

[xXBob RossXx]

View: http://www.youtube.com/watch?v=hGleaXok7aQ

 

[Dar-Dar]

View: http://www.youtube.com/watch?v=hGleaXok7aQ

Does that car have 6 reverse gear speeds that's backwards?

 

[the insider]

Does that car have 6 reverse gear speeds that's backwards?

For race applications forward gears are straight cut also. Straight cut= strength and ease of construction - helical cut is quiet but pricier to make.

 

[MrsJrotax101]

I find that the reverse noise is similar to an RC car
I always said that about our '07 FA5

View: http://youtu.be/8thTOZk08u0?t=30s

 

[KennyGS]

Back in the day... there was a thing called the Muncie Rock Crusher transmission. You can hear it at the beginning of this vid.

 

[Dar-Dar]

For race applications forward gears are straight cut also. Straight cut= strength and ease of construction - helical cut is quiet but pricier to make.

I know. I was making a joke.